Vulnerability-Lookup

CVE-2026-64444 (GCVE-0-2026-64444)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-07-25 08:51

Title

staging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop

Summary

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop The IE parsing loop in OnAssocRsp() advances by (pIE->length + 2) each iteration but only guards on i < pkt_len. When a malicious AP sends an AssocResponse whose last IE has only one byte remaining in the frame (the element_id byte lands at pkt_len-1), the loop reads pIE->length from pframe[pkt_len], which is one byte past the allocated receive buffer. Additionally, even when the header bytes are in bounds, pIE->length itself can extend the data window beyond pkt_len, silently passing a truncated IE to the handler functions. Add two guards at the top of the loop body: 1. Break if fewer than sizeof(*pIE) bytes remain (can't read header). 2. Break if the IE's declared data extends past pkt_len.

Severity

No CVSS data available.

Assigner

Linux

References

7 references

URL	Tags
https://git.kernel.org/stable/c/889ca6000ac7fa734…
https://git.kernel.org/stable/c/1a52a05471494546f…
https://git.kernel.org/stable/c/0406d746574e875d8…
https://git.kernel.org/stable/c/0970dd47726a57e52…
https://git.kernel.org/stable/c/04f612dc03427e0b1…
https://git.kernel.org/stable/c/7e7741c8315e4160a…
https://git.kernel.org/stable/c/f9654207e92283e0a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 889ca6000ac7fa73457b041848fcb08e0d51b809 (git) Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 1a52a05471494546f955a58e8c170c0c796c52d5 (git) Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 0406d746574e875d8778552eb674fcfbf5330bfb (git) Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 0970dd47726a57e52013594e9fbf667586eb3673 (git) Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 04f612dc03427e0b1ac80a2611b5ac0ba93ac446 (git) Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 7e7741c8315e4160aead00a60cdd6f81ab880717 (git) Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < f9654207e92283e0acac5d64fe5f8835383b5a23 (git)
Linux	Linux	Affected: 4.12 Unaffected: 0 , < 4.12 (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop\n\nThe IE parsing loop in OnAssocRsp() advances by (pIE-\u003elength + 2) each\niteration but only guards on i \u003c pkt_len. When a malicious AP sends an\nAssocResponse whose last IE has only one byte remaining in the frame\n(the element_id byte lands at pkt_len-1), the loop reads pIE-\u003elength\nfrom pframe[pkt_len], which is one byte past the allocated receive buffer.\n\nAdditionally, even when the header bytes are in bounds, pIE-\u003elength\nitself can extend the data window beyond pkt_len, silently passing a\ntruncated IE to the handler functions.\n\nAdd two guards at the top of the loop body:\n  1. Break if fewer than sizeof(*pIE) bytes remain (can\u0027t read header).\n  2. Break if the IE\u0027s declared data extends past pkt_len."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-25T08:51:15.968Z",
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          "url": "https://git.kernel.org/stable/c/889ca6000ac7fa73457b041848fcb08e0d51b809"
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        },
        {
          "url": "https://git.kernel.org/stable/c/0406d746574e875d8778552eb674fcfbf5330bfb"
        },
        {
          "url": "https://git.kernel.org/stable/c/0970dd47726a57e52013594e9fbf667586eb3673"
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        },
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          "url": "https://git.kernel.org/stable/c/f9654207e92283e0acac5d64fe5f8835383b5a23"
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    "cveId": "CVE-2026-64444",
    "datePublished": "2026-07-25T08:51:15.968Z",
    "dateReserved": "2026-07-19T15:36:31.788Z",
    "dateUpdated": "2026-07-25T08:51:15.968Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-07-26",
      "epss": "0.0018",
      "percentile": "0.07883"
    },
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    "suse_vex": {
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      "current_release_date": "2026-07-25T15:59:13Z",
      "cve": "CVE-2026-64444",
      "id": "CVE-2026-64444",
      "initial_release_date": "2026-07-25T15:59:13Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64444",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64444.json",
      "version": "2"
    }
  }
}

GHSA-9QR3-XG49-R8HQ

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

In the Linux kernel, the following vulnerability has been resolved:

staging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop

The IE parsing loop in OnAssocRsp() advances by (pIE->length + 2) each iteration but only guards on i < pkt_len. When a malicious AP sends an AssocResponse whose last IE has only one byte remaining in the frame (the element_id byte lands at pkt_len-1), the loop reads pIE->length from pframe[pkt_len], which is one byte past the allocated receive buffer.

Additionally, even when the header bytes are in bounds, pIE->length itself can extend the data window beyond pkt_len, silently passing a truncated IE to the handler functions.

Add two guards at the top of the loop body: 1. Break if fewer than sizeof(*pIE) bytes remain (can't read header). 2. Break if the IE's declared data extends past pkt_len.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-64444"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:29Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop\n\nThe IE parsing loop in OnAssocRsp() advances by (pIE-\u003elength + 2) each\niteration but only guards on i \u003c pkt_len. When a malicious AP sends an\nAssocResponse whose last IE has only one byte remaining in the frame\n(the element_id byte lands at pkt_len-1), the loop reads pIE-\u003elength\nfrom pframe[pkt_len], which is one byte past the allocated receive buffer.\n\nAdditionally, even when the header bytes are in bounds, pIE-\u003elength\nitself can extend the data window beyond pkt_len, silently passing a\ntruncated IE to the handler functions.\n\nAdd two guards at the top of the loop body:\n  1. Break if fewer than sizeof(*pIE) bytes remain (can\u0027t read header).\n  2. Break if the IE\u0027s declared data extends past pkt_len.",
  "id": "GHSA-9qr3-xg49-r8hq",
  "modified": "2026-07-25T12:31:36Z",
  "published": "2026-07-25T12:31:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64444"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0406d746574e875d8778552eb674fcfbf5330bfb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04f612dc03427e0b1ac80a2611b5ac0ba93ac446"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0970dd47726a57e52013594e9fbf667586eb3673"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a52a05471494546f955a58e8c170c0c796c52d5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e7741c8315e4160aead00a60cdd6f81ab880717"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/889ca6000ac7fa73457b041848fcb08e0d51b809"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9654207e92283e0acac5d64fe5f8835383b5a23"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-64444 (GCVE-0-2026-64444)

GHSA-9QR3-XG49-R8HQ

Tags

Sightings

Nomenclature